Unscratchable gold is harder than steel

By combining a gold alloy with boron carbide, an extremely hard ceramic that’s used in bulletproof vests, a Swiss team of EPFL researchers succeeded in making the world’s toughest 18-karat gold (75% gold). With a Vickers hardness number of 1000, it’s harder than most tempered steels (600 Vickers) and thus almost impossible to scratch, except with a diamond. This discovery is the result of a three-year collaboration between the Mechanical Metallurgy Laboratory in EPFL’s Institute of Materials, under the leadership of Professor Andreas Mortensen, and the Swiss watchmaking company Hublot — via redwolf.newsvine.com

Share this Story
  • Art

    Geometric Pattern: Aperture: Stone / Red Wolf

    Geometric Pattern: Aperture: Bluestone Geometric Pattern: Aperture: Brownstone Geometric Pattern: Aperture: Pebble Geometric Pattern: Aperture: Portland Geometric Pattern: Aperture: Sandstone Geometric ...
  • Art

    Geometric Pattern: Aperture: Ghost / Red Wolf

    Geometric Pattern: Aperture: Abby Geometric Pattern: Aperture: Butterscotch Geometric Pattern: Aperture: Columbia Geometric Pattern: Aperture: Linen Geometric Pattern: Aperture: Peach Geometric ...
  • Art

    Geometric Pattern: Aperture: Retro / Red Wolf

    Geometric Pattern: Aperture: Ashbury Geometric Pattern: Aperture: Mysterioso Geometric Pattern: Aperture: Parkside Geometric Pattern: Aperture: Passage Geometric Pattern: Aperture: Racer Geometric ...
  • Art

    Geometric Pattern: Aperture: White Background / Red Wolf

    Geometric Pattern: Aperture: White/Red Geometric Pattern: Aperture: White/Orange Geometric Pattern: Aperture: White/Yellow Geometric Pattern: Aperture: White/Green Geometric Pattern: Aperture: White/Blue Geometric ...
  • Art

    Geometric Pattern: Aperture: Black Background / Red Wolf

    Geometric Pattern: Aperture: Black/Red Geometric Pattern: Aperture: Black/Orange Geometric Pattern: Aperture: Black/Yellow Geometric Pattern: Aperture: Black/Green Geometric Pattern: Aperture: Black/Blue Geometric ...
  • Art

    Geometric Pattern: Aperture: White Outline / Red Wolf

    Geometric Pattern: Aperture: Red/White Geometric Pattern: Aperture: Orange/White Geometric Pattern: Aperture: Yellow/White Geometric Pattern: Aperture: Green/White Geometric Pattern: Aperture: Blue/White Geometric ...
Load More Related Articles
  • Art

    Geometric Pattern: Aperture: Stone / Red Wolf

    Geometric Pattern: Aperture: Bluestone Geometric Pattern: Aperture: Brownstone Geometric Pattern: Aperture: Pebble Geometric Pattern: Aperture: Portland Geometric Pattern: Aperture: Sandstone Geometric ...
  • Art

    Geometric Pattern: Aperture: Ghost / Red Wolf

    Geometric Pattern: Aperture: Abby Geometric Pattern: Aperture: Butterscotch Geometric Pattern: Aperture: Columbia Geometric Pattern: Aperture: Linen Geometric Pattern: Aperture: Peach Geometric ...
  • Art

    Geometric Pattern: Aperture: Retro / Red Wolf

    Geometric Pattern: Aperture: Ashbury Geometric Pattern: Aperture: Mysterioso Geometric Pattern: Aperture: Parkside Geometric Pattern: Aperture: Passage Geometric Pattern: Aperture: Racer Geometric ...
  • Art

    Geometric Pattern: Aperture: White Background / Red Wolf

    Geometric Pattern: Aperture: White/Red Geometric Pattern: Aperture: White/Orange Geometric Pattern: Aperture: White/Yellow Geometric Pattern: Aperture: White/Green Geometric Pattern: Aperture: White/Blue Geometric ...
  • Art

    Geometric Pattern: Aperture: Black Background / Red Wolf

    Geometric Pattern: Aperture: Black/Red Geometric Pattern: Aperture: Black/Orange Geometric Pattern: Aperture: Black/Yellow Geometric Pattern: Aperture: Black/Green Geometric Pattern: Aperture: Black/Blue Geometric ...
  • Art

    Geometric Pattern: Aperture: White Outline / Red Wolf

    Geometric Pattern: Aperture: Red/White Geometric Pattern: Aperture: Orange/White Geometric Pattern: Aperture: Yellow/White Geometric Pattern: Aperture: Green/White Geometric Pattern: Aperture: Blue/White Geometric ...
Load More By Red Wolf
Load More In Science

Leave a Reply

Your email address will not be published. Required fields are marked *

Photos from Flickr